React native learning Android return key backandroid detailed explanation

preface

Recently, I was learning to use react native for development. After IOS was finished, I began to adapt to Android. Because I had contact with Android, I encountered many problems. The first problem is the return key of Android,

I wrote a tool class to handle it, which uses Java native code to interact with JS; OK, let's start the formal content:

Upper Code:

The Java native code is as follows:

Management class: rctcommontoolspackage (PS): if you don't understand, you can go to react native here to learn: http://reactnative.cn/docs/0.25/native-modules-android.html#content );

Class of custom method: rctcommontools

summary

The above is the whole content of this article. There are still many deficiencies in this article. I hope the content of this article has a certain reference value for your study or work. If you have any questions, you can leave a message. Thank you for your support for programming tips.